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ESE- 589 MTR3I+ canes atitattitt senses {seem xa aeemao DEFENSIV UNITEDSTATES PATENT OFFICE Published at the request of the applicant or ownerin accordance with the Notice of Apr. 11, 1968, 849 0.6. 1221. Idemtlflcatlon is by serial number of'the application and the headingindicates the number of pages of specification, including claims, and ofsheets of drawing contained in the application as originally filed. Thefile of this application is available to the public for inspection;reproduction may be purchased for 30 cents per sheet.

Applications published under the Defensive Publication Program have notbeen examined as to the merits of alleged invention. The Patent Oificemakes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED SEPTEMBER 30, 1969 7 7 ri mazgoae COATING COMPOSITIONS ANDCOATED SUBSTRATES Larry G. Curtis, 3606 Cimarron Drive, Johnson City,Tenn. 37601, and Roy G. Foulk, 1357 Garden Drive, Gerald R. Lappin, 4047Skyland Drive, Jack W. Lowe, Jr., 520 Rambling Road, and Wayne V.McConnell, 1509 Ardmore Place, all of Kingsport, Tenn. 37664 Filed May27, 1968. Published Sept. 30, 1969 Int. Cl. C08f 15/18; C09d 5/32, 3/80U.Se Cl. 117-333 No Drawing. 12 Pages Specification Coatingcompositions, coated substrates, and coating process are disclosed whichprovide improved stability with respect to degradative efiects ofultraviolet light. The coating composition comprises a film-formingmaterial which includes a polymer of methyl methacrylate, a polymericultraviolet light inhibitor, and a volatile solvent therefor. Thepolymers of methyl methacrylate include homopolymers of methylmethacrylate, copolymers of methyl methacrylate and a minor proportionof other copolymerizable materials, or mixtures of the homopolymers andcopolymers. The polymeric ultraviolet light inhibitors according to thisinvention are defined as copolymers of (I)4-benzoyl-3-hydroxyphenoxyethyl acrylate or methacrylate with (II) analkyl acrylatc or methacrylate wherein the alkyl group has 4-18 carbonatoms. The volatile solvents according to this invention includealiphatic, cycioaliphatic and aromatic hydrocarbons, esters, ethers,ketones and alcohols. The coating process includes applying theabove-described coating composition to a substrate and baking it atabout l50225 F. to volatilize the solvent, sanding the coated substrateto remove surface imperfections, and again baking at about 275325 F. tosoften and refiow the coating

